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    CVE-2015-2327

    PCRE before 8.36 mishandles the /(((a\2)|(a*)\g<-1>))*/ pattern and related patterns with certain internal recursive back references, which allows remote attackers to cause a denial of service (segmentation fault) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.

    Published:Jul 11, 2014
    Last Modified:Apr 12, 2025
    EPS:Dec 2, 2015
    EPSS Score:0.0453
    CVSS Score:7.5

    Affected Products

    Vendor
    Pcre
    Product
    Perl Compatible Regular Expression Library
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Software Collections

    Exploits

    http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markuphttps://bugs.exim.org/show_bug.cgi?id=1503http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markuphttps://bugs.exim.org/show_bug.cgi?id=1503

    Related CVEs

    CVE-2015-8389 (CVSS 9.8) — PCRE before 8.38 mishandles the /(?:|a|){100}x/ pattern and related patterns, which allows remote attackers to…
    CVE-2015-8395 (CVSS 7.5) — PCRE before 8.38 mishandles certain references, which allows remote attackers to cause a denial of service or …
    CVE-2015-8381 (CVSS 7.5) — The compile_regex function in pcre_compile.c in PCRE before 8.38 and pcre2_compile.c in PCRE2 before 10.2x mis…
    CVE-2015-8383 (CVSS 9.8) — PCRE before 8.38 mishandles certain repeated conditional groups, which allows remote attackers to cause a deni…
    CVE-2015-8384 (CVSS 7.5) — PCRE before 8.38 mishandles the /(?J)(?'d'(?'d'\g{d}))/ pattern and related patterns with certain recursive ba…
    CVE-2015-8390 (CVSS 9.8) — PCRE before 8.38 mishandles the [: and \\ substrings in character classes, which allows remote attackers to ca…
    CVE-2015-8387 (CVSS 7.3) — PCRE before 8.38 mishandles (?123) subroutine calls and related subroutine calls, which allows remote attacker…
    CVE-2015-8392 (CVSS 7.5) — PCRE before 8.38 mishandles certain instances of the (?| substring, which allows remote attackers to cause a d…
    CVE-2015-8393 (CVSS 7.5) — pcregrep in PCRE before 8.38 mishandles the -q option for binary files, which might allow remote attackers to …
    CVE-2015-8394 (CVSS 9.8) — PCRE before 8.38 mishandles the (?(<digits>) and (?(R<digits>) conditions, which allows remote attackers to ca…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High